Plasma confinement using semi-spherical cavities for enhancement of ablative laser propulsion parameters

Nazeer, Nasba; Younus, Ayesha; Jamil, Yasir; Nadeem, Raziya

doi:10.1007/s00340-022-07926-4

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…Plasma compression was decreased with the increase in cavity diameter size. Maximum C m was obtained for the smallest diameter cavity [22], while Ahmed et al trapped the shockwaves and plasma with a cylindrically shaped glass cavity. By varying the laser fluence between 4 × 10 5 −6 × 10 5 J cm −2 , with five sets of cavities with depth varying between 2-12 mm, they measured C m values.…”

Section: Resultsmentioning

confidence: 99%

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Effect of plasma confinement on laser ablation propulsion parameters by using external semi-elliptical cavities for Aluminum and Silver propellants

et al. 2023

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Ablative laser propulsion (ALP) is a type of beam-powered propulsion in which thrust is produced by ablating a target using a high-intensity laser beam. In this research work, we calculated the ALP parameters momentum coupling coefficient (Cm) and specific impulse (Isp) by confining the plasma with the help of external semi-elliptical cavities. The cavity minor axis was fixed at 2.5mm while the major axis varied to 7mm, 9mm, 11mm, 13mm and 15mm. Silver and aluminum samples were used as propellants. A pulsed Q-smart Nd: YAG laser operating at 532nm wavelength was used to ablate the target. A significant increase in the value of Cm and Isp was observed using confined ablative propulsion. The highest Cm and Isp were recorded for the 9 mm major axis cavity, for which Cm was increased from 5.01x10-5 N-s/J to1.75x10-4 nearly 249% for silver and from 3.4x10-5 N-s/J to 8.9x10-5 N-s/J nearly 161% for aluminum. Hence the use of semielliptical cavities is an effective technique for enhancing propulsion parameters. Cavity acts as a trap for plasma and shockwaves. Confinement of plasma and reflection of shockwaves from the cavity walls results in enhanced laser ablation propulsion parameters.

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Section: Resultsmentioning

confidence: 99%

“…In the present work, semi-elliptical shaped metallic cavities were used to enhance the ALP parameters. Choice of material was made based on previously published data [22]. Aluminum and silver were used as propellants due to their high melting point, thermal conductivity, hardness and low atomic mass.…”

Section: Introductionmentioning

confidence: 99%

Effect of plasma confinement on laser ablation propulsion parameters by using external semi-elliptical cavities for Aluminum and Silver propellants

et al. 2023

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“…It has been studied how exterior semi-spherical cavities affect the laser ablation propulsion characteristics for targets made of aluminum, gold, and silver. 33 Shockwaves were produced by trapped plasma in semi-spherical cavities with varying sizes. Shockwaves from the cavity were uniformly reflected, which greatly increased the C m and I sp .…”

Section: A Different Techniques Used To Measure Propulsive Parametersmentioning

confidence: 99%

Ablative laser propulsion, the propellants and measuring parameters: A brief review

Abbas,

Iqbal,

Jamil

2024

Journal of Laser Applications

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Keeping in view the weightage of electric propulsion over chemical propulsion, materials from metals to polymers and liquid (water) have been tested as propellants in ablative laser propulsion. This emerging propulsion technique can be widely used for aerospace applications like debris removal in the range of cm, pointing micro and nano satellites, laser micro thrusters for spacecraft attitude, and orbit control. Laser propulsion can become a less expensive alternative to chemical propulsion. In this review, we compile the work done in ablative laser propulsion and different modes of propulsion along with the efficiency of different propellants. We summarize the optimized propulsive parameters with solid propellants and liquid propellants along with the efficiencies and theories of laser thrusters with optimized specific impulses. The article provides precise developments done in the field of ablative laser propulsion and deep insights into the analysis done between the different propellants used recently in ablative laser propulsion.

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水下光纤纳秒激光推进的短微腔结构性能研究

Ge Yang,

Li Hanyang,

Wang Hongtao

et al. 2024

光学学报

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Plasma confinement using semi-spherical cavities for enhancement of ablative laser propulsion parameters

Cited by 5 publications

References 26 publications

Effect of plasma confinement on laser ablation propulsion parameters by using external semi-elliptical cavities for Aluminum and Silver propellants

Effect of plasma confinement on laser ablation propulsion parameters by using external semi-elliptical cavities for Aluminum and Silver propellants

Ablative laser propulsion, the propellants and measuring parameters: A brief review

水下光纤纳秒激光推进的短微腔结构性能研究

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